WO2018036067A1 - Usb3.0设备的测试装置 - Google Patents

Usb3.0设备的测试装置 Download PDF

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Publication number
WO2018036067A1
WO2018036067A1 PCT/CN2016/113403 CN2016113403W WO2018036067A1 WO 2018036067 A1 WO2018036067 A1 WO 2018036067A1 CN 2016113403 W CN2016113403 W CN 2016113403W WO 2018036067 A1 WO2018036067 A1 WO 2018036067A1
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usb
interface
test
channel switching
signal
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PCT/CN2016/113403
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English (en)
French (fr)
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王俊凯
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广州视睿电子科技有限公司
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Publication of WO2018036067A1 publication Critical patent/WO2018036067A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/26—Functional testing
    • G06F11/267—Reconfiguring circuits for testing, e.g. LSSD, partitioning

Definitions

  • the utility model relates to the technical field of testing, in particular to a testing device for a USB 3.0 device.
  • USB Universal Serial Bus
  • USB devices are widely used in people's daily life. Before USB devices are shipped from the factory, they need to be tested to ensure that the functions of the USB devices are normal.
  • USB standard interfaces above USB3.0 and USB3.0 need to be compatible with USB2.0 and the following standards. Therefore, when testing the functions of USB3.0 and USB3.0 interfaces above USB3.0, it is necessary to test the USB devices separately. Whether the interface functions normally under the USB3.0 channel and under the USB2.0 channel. At this stage, when testing USB devices with USB3.0 and USB3.0 or higher, only one channel mode can be identified at a time. There is no quick test method and tool for such USB devices. To test whether the interface of this type of USB device is normal under USB3.0 channel and USB2.0 channel, you need to insert these USB devices to be tested into the USB3.0 test interface and USB2.0 test interface of the upstream PC.
  • USB3.0 channel mode instead of USB2.0 channel mode, which consumes a lot of human resources and is prone to misjudgment.
  • the utility model provides a testing device for a USB3.0 device, which solves The problem of fast and accurate testing of backward compatible USB 3.0 devices.
  • the testing device of the USB3.0 device includes a USB3.0 device interface to be tested, a USB2.0 test interface, a USB3.0 test interface, and a control unit for issuing a channel switching instruction. And a USB channel switching unit for receiving and responding to the channel switching instruction;
  • the USB channel switching unit receives the USB2.0 signal and the USB3.0 signal outputted by the USB3.0 device interface to be tested, and selects to transmit the USB2.0 signal to the USB2.0 test interface according to the channel switching instruction issued by the control unit, or selects Transfer the USB3.0 signal to the USB3.0 test interface.
  • the control unit is further configured to issue a power switching instruction; and further includes a USB power switching unit configured to supply power to the USB 3.0 device interface to be tested, and receive and respond to the power switching instruction;
  • the USB power switching unit selects to turn on the interface power of the USB2.0 test interface according to the power switching instruction issued by the control unit, or select to connect the interface power of the USB3.0 test interface.
  • the control unit is a manual switch.
  • the control unit is a control chip.
  • the USB channel switching unit includes a channel selection circuit.
  • the USB power switching unit includes a backup power supply and a test interface selection circuit.
  • the standby power supply voltage is 5V.
  • the USB3.0 device interface to be tested includes four USB3.0 signal pins and two USB2.0 signal pins.
  • the USB3.0 test interface includes four USB3.0 signal pins, corresponding to the four USB3.0 signal pins that interface with the USB3.0 device to be tested.
  • the USB2.0 test interface includes two USB2.0 signal pins, which correspond to the two USB2.0 signal pins of the USB3.0 device to be tested.
  • the testing device of the USB3.0 device sends a channel switching instruction to the USB channel switching unit through the control unit, and the USB channel switching unit selects to transmit the received USB2.0 signal to the USB2 according to the channel switching instruction.
  • 0 test interface or choose to transmit the received USB3.0 signal to the USB3.0 test interface, to achieve the USB3.0 device interface to be tested connected to the USB2.0 test interface or USB3.0 test interface, thus reaching the USB3 to be tested.
  • the channel switching instruction is issued by the control unit, and the USB channel switching unit receives and responds to the channel switching instruction, and the USB3.0 device to be tested can be connected to the USB3.0 device to be tested in the USB2.0 state without being repeatedly plugged and unplugged. Fast switching and fast and accurate testing in USB3.0 state.
  • FIG. 1 is a schematic structural diagram of a test apparatus for a USB 3.0 device according to an embodiment of the present invention
  • FIG. 2 is another schematic structural diagram of a testing device for a USB 3.0 device according to an embodiment of the present invention.
  • FIG. 1 and FIG. 2 are schematic structural diagrams of a testing device for a USB 3.0 device provided by an embodiment of the present invention.
  • the test device in the embodiment of the present invention is mainly used to solve the problem of fast and accurate testing of the USB 3.0 device.
  • a test device for a USB 3.0 device includes a USB 3.0 device interface 10 to be tested, a USB 2.0 test interface 20 , a USB 3.0 test interface 30 , and a control unit 40 for issuing a channel switching instruction. And a USB channel switching unit 50 for receiving and responding to the channel switching instruction;
  • the USB channel switching unit 50 receives the USB2.0 signal and the USB3.0 signal outputted by the USB3.0 device interface 10 to be tested, and selects to transmit the USB2.0 signal to the USB2.0 test according to the channel switching instruction issued by the control unit 40. Interface 20, or select to transfer the USB 3.0 signal to USB 3.0 test interface 30.
  • the channel switching instruction is issued by the control unit 40, and the USB channel switching unit 50 receives and responds to the channel switching instruction, and the USB3.0 device to be tested can be connected to the USB3.0 to be tested without repeated insertion and removal.
  • control unit 40 is further configured to issue a power switching instruction; and further includes a USB power switching unit 60 for supplying power to the USB 3.0 device interface 10 to be tested, and receiving and responding to the power switching instruction. ;
  • the USB power switching unit 60 selects to turn on the interface power of the USB2.0 test interface 20 or select the interface power of the USB3.0 test interface 30 according to the power switching command issued by the control unit 40.
  • the USB power switching unit 60 supplies power to the USB 3.0 device interface 10 to be tested.
  • the control unit 40 issues a power switching command to control the USB power switching unit 60 to select the USB 2.0 test interface 20 to be turned on. Interface power, or choose to connect USB3.0 test interface 30
  • the interface power supply is such that the USB3.0 device interface 10 to be tested can be normally connected to the USB 2.0 test interface 20 or the USB 3.0 test interface 30.
  • the control unit 40 when the channel switching instruction is issued, the control unit 40 also issues a corresponding power switching instruction, that is, when the USB channel switching unit 50 is controlled to connect the USB 3.0 device interface 10 and the USB 2.0 test interface 20 to be tested.
  • the USB power switching unit 60 is also controlled to turn on the interface power of the USB2.0 test interface 20, or when the USB channel switching unit 50 is connected to the USB3.0 device interface 10 and the USB3.0 test interface 30 to be tested, The USB power switching unit 60 is controlled to turn on the interface power of the USB 3.0 test interface 30.
  • the above control unit 40 is a manual switch.
  • the manual switch can be a slide switch or a push button switch, etc., and can manually and conveniently control the working states of the USB channel switching unit 50 and the USB power switching unit 60.
  • the above control unit 40 is a control chip. Through the control chip, the working state of the USB channel switching unit 50 and the USB power switching unit 60 can be automatically controlled according to actual test requirements.
  • the USB channel switching unit 50 described above includes a channel selection circuit (not shown).
  • the channel selection circuit selects to connect the USB2.0 test interface 20 to the USB3.0 device interface 10 to be tested or the USB3.0 test interface 30 and the USB 3.0 device interface 10 to be tested according to the above channel switching instruction.
  • the USB power switching unit 60 includes a backup power source (not shown) and a test interface selection circuit (not shown).
  • the standby power supply supplies power to the USB 3.0 device interface 10 to be tested, and when the interface power of the USB2.0 test interface 20 and/or the interface power of the USB 3.0 device interface 10 are abnormal, the test interface that needs to be connected is selected.
  • Power supply; test interface selection circuit according to the above power switching instruction correspondingly select to connect the interface power of the USB2.0 test interface 20 or turn on the interface power of the USB3.0 test interface 30, so that the USB3.0 device interface 10 to be tested can be normally connected Pass USB2.0 test interface 20 or USB3.0 test interface 30.
  • the voltage of the above standby power source is 5V.
  • the USB 3.0 device interface 10 to be tested includes four USB 3.0 signal pins and two USB 2.0 signal pins.
  • four USB3.0 signal pins can be [SSTX+, SSTX-, SSRX+, SSRX-]
  • the two USB2.0 signal pins can be [D+, D-].
  • the USB 3.0 test interface 30 described above includes four USB 3.0 signal pins corresponding to the four USB 3.0 signal pins of the USB 3.0 device interface 10 to be tested.
  • the USB 2.0 test interface 20 described above includes two USB 2.0 signal pins corresponding to the two USB 2.0 signal pins of the USB 3.0 device interface 10 to be tested.
  • USB3.0 signal pins of the USB3.0 test interface 30 the four USB3.0 signal pins of the USB3.0 device interface 10 to be tested can be connected, and the above USB2
  • the two USB2.0 signal pins of the .0 test interface 20 are correspondingly connected to the two USB2.0 signal pins of the USB3.0 device interface 10 to be tested, and four correspondingly arranged on the USB channel switching unit 50.
  • USB3.0 signal pin of the USB3.0 device interface 10 to be tested passes through the USB3.0 signal access pin and the USB3.0 signal output pin on the USB channel switching unit 50, and can indirectly communicate with the USB3.0 test interface 30.
  • USB3.0 signal pin connection; USB2.0 signal pin of USB3.0 device interface 10 to be tested can be indirectly through USB2.0 signal access pin and USB2.0 signal output pin on USB channel switching unit 50. Connect to the USB2.0 signal pin of the USB2.0 test interface 20.

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Abstract

一种USB3.0设备的测试装置，包括待测USB3.0设备接口（10）、USB2.0测试接口（20）、USB3.0测试接口（30）、用于发出通道切换指令的控制单元（40）和用于接收并响应通道切换指令的USB通道切换单元（50）；USB通道切换单元（50）接收待测USB3.0设备接口（10）输出的USB2.0信号和USB3.0信号，并根据控制单元（40）发出的通道切换指令，选择将USB2.0信号传输给USB2.0测试接口（20），或选择将USB3.0信号传输给USB3.0测试接口（30）。通过控制单元（40）发出通道切换指令，USB通道切换单元（50）接收并响应该通道切换指令，一次性接入待测USB3.0设备无需反复插拔，即可实现待测USB3.0设备在USB2.0状态和USB3.0状态下的快速切换及快速准确的测试。

Description

USB3.0设备的测试装置 技术领域
本实用新型涉及测试技术领域，尤其涉及一种USB3.0设备的测试装置。
背景技术
现如今USB(Universal Serial Bus，通用串行总线)设备广泛应用于人们的日常生活中，在USB设备出厂前需要对进行测试，以确保USB设备的各通道的功能正常。
因USB3.0及USB3.0以上的USB标准接口需要兼容USB2.0及以下标准，所以对于USB3.0及USB3.0以上的USB设备的接口进行功能测试时，需要分别测试这类USB设备的接口在USB3.0通道下及USB2.0通道下的功能是否正常。现阶段针对USB3.0及USB3.0以上的USB设备测试时，一次只能识别一种通道模式，对这类USB设备还没有快捷的测试方法和工具。要测试这类USB设备的接口在USB3.0通道下及USB2.0通道下的功能是否正常，需要将这类待测USB设备分别插入到上游PC端的USB3.0测试接口及USB2.0测试接口进行测试，并且在插入USB3.0测试接口测试USB3.0通道功能时还需人为判断确实是识别为USB3.0通道模式而不是USB2.0通道模式，需消耗大量人力资源，且容易发生误判。
实用新型内容
为解决相关技术问题，本实用新型提供一种USB3.0设备的测试装置，解决 对向下兼容的USB3.0设备进行快速准确测试的问题。
为实现上述目的，本实用新型实施例提供的USB3.0设备的测试装置，包括待测USB3.0设备接口、USB2.0测试接口、USB3.0测试接口、用于发出通道切换指令的控制单元和用于接收并响应通道切换指令的USB通道切换单元；
USB通道切换单元接收待测USB3.0设备接口输出的USB2.0信号和USB3.0信号，并根据控制单元发出的通道切换指令，选择将USB2.0信号传输给USB2.0测试接口，或选择将USB3.0信号传输给USB3.0测试接口。
其中，控制单元还用于发出电源切换指令；还包括用于为待测USB3.0设备接口供电，及接收并响应电源切换指令的USB电源切换单元；
USB电源切换单元根据控制单元发出的电源切换指令，选择接通USB2.0测试接口的接口电源，或选择接通USB3.0测试接口的接口电源。
其中，控制单元为手动开关。
其中，控制单元为控制芯片。
其中，USB通道切换单元包括通道选择电路。
其中，USB电源切换单元包括备用电源和测试接口选择电路。
其中，备用电源的电压为5V。
其中，待测USB3.0设备接口包括四个USB3.0信号引脚和两个USB2.0信号引脚。
其中，USB3.0测试接口包括四个USB3.0信号引脚，与待测USB3.0设备接口的四个USB3.0信号引脚相对应。
其中，USB2.0测试接口包括两个USB2.0信号引脚，与待测USB3.0设备接口的两个USB2.0信号引脚相对应。
本实用新型实施例提供的技术方案带来的有益效果：
本技术方案中，USB3.0设备的测试装置，通过控制单元发向USB通道切换单元出通道切换指令，USB通道切换单元根据该通道切换指令，选择将接收到的USB2.0信号传输给USB2.0测试接口，或选择将接收到的USB3.0信号传输给USB3.0测试接口，实现待测USB3.0设备接口连接USB2.0测试接口或USB3.0测试接口，从而分别达到待测USB3.0设备在USB2.0状态或USB3.0状态下的功能测试。通过控制单元发出通道切换指令，USB通道切换单元接收并响应该通道切换指令，一次性接入待测USB3.0设备无需反复插拔，即可实现待测USB3.0设备在USB2.0状态和USB3.0状态下的快速切换及快速准确的测试。
附图说明
为了更清楚地说明本实用新型实施例中的技术方案，下面将对本实用新型实施例描述中所需要使用的附图作简单的介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据本实用新型实施例的内容和这些附图获得其他的附图。
图1是本实用新型实施例提供的USB3.0设备的测试装置的结构示意图；
图2是本实用新型实施例提供的USB3.0设备的测试装置的另一结构示意图。
具体实施方式
为使本实用新型解决的技术问题、采用的技术方案和达到的技术效果更加清楚，下面将结合附图对本实用新型实施例的技术方案作进一步的详细描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。 基于本实用新型中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。
请参考图1和图2，两图均是本实用新型实施例提供的USB3.0设备的测试装置的结构示意图。本实用新型实施例中的测试装置主要用于解决USB3.0设备的快速准确测试问题。
如图1所示，一种USB3.0设备的测试装置，包括待测USB3.0设备接口10、USB2.0测试接口20、USB3.0测试接口30、用于发出通道切换指令的控制单元40和用于接收并响应所述通道切换指令的USB通道切换单元50；
该USB通道切换单元50接收待测USB3.0设备接口10输出的USB2.0信号和USB3.0信号，并根据控制单元40发出的通道切换指令，选择将USB2.0信号传输给USB2.0测试接口20，或选择将USB3.0信号传输给USB3.0测试接口30。
在本实施例中，通过控制单元40发出通道切换指令，USB通道切换单元50接收并响应该通道切换指令，一次性接入待测USB3.0设备无需反复插拔，即可实现待测USB3.0设备在USB2.0状态和USB3.0状态下的快速切换及快速准确的测试。
如图2所示，优选地，述控制单元40还用于发出电源切换指令；还包括用于为待测USB3.0设备接口10供电，及接收并响应上述电源切换指令的USB电源切换单元60；
该USB电源切换单元60根据控制单元40发出的电源切换指令，选择接通USB2.0测试接口20的接口电源，或选择接通USB3.0测试接口30的接口电源。
在本实施例中，USB电源切换单元60为待测USB3.0设备接口10供电，根据实际测试需要，通过控制单元40发出电源切换指令控制USB电源切换单元60选择接通USB2.0测试接口20的接口电源，或选择接通USB3.0测试接口30 的接口电源，从而使得待测USB3.0设备接口10可正常连接USB2.0测试接口20或USB3.0测试接口30。
在此需要说明的是，控制单元40在发出通道切换指令的同时也发出相应的电源切换指令，即在控制USB通道切换单元50连接待测USB3.0设备接口10和USB2.0测试接口20时，同时也控制USB电源切换单元60相应接通USB2.0测试接口20的接口电源，或在控制USB通道切换单元50连接待测USB3.0设备接口10和USB3.0测试接口30时，同时也控制USB电源切换单元60相应接通USB3.0测试接口30的接口电源。
优选地，上述控制单元40为手动开关。手动开关可以为滑动开关或按钮开关等，可实现人工方便地控制USB通道切换单元50和USB电源切换单元60的工作状态。
优选地，上述控制单元40为控制芯片。通过控制芯片可实现根据实际的测试需要，自动控制USB通道切换单元50和USB电源切换单元60的工作状态。
优选地，上述USB通道切换单元50包括通道选择电路(图未示)。通道选择电路根据上述通道切换指令，相应选择连接USB2.0测试接口20与待测USB3.0设备接口10，或连接USB3.0测试接口30与待测USB3.0设备接口10。
优选地，上述USB电源切换单元60包括备用电源(图未示)和测试接口选择电路(图未示)。其中，备用电源为待测USB3.0设备接口10供电，并在USB2.0测试接口20的接口电源和/或USB3.0设备接口10的接口电源发生异常时，选择为需要接通的测试接口供电；测试接口选择电路根据上述电源切换指令，相应选择接通USB2.0测试接口20的接口电源或接通USB3.0测试接口30的接口电源，使得待测USB3.0设备接口10能正常接通USB2.0测试接口20或USB3.0测试接口30。
进一步地，上述备用电源的电压为5V。
优选地，上述待测USB3.0设备接口10包括四个USB3.0信号引脚和两个USB2.0信号引脚。其中，四个USB3.0信号引脚可以为[SSTX+，SSTX-，SSRX+，SSRX-]，两个USB2.0信号引脚可以为[D+，D-]。
优选地，上述USB3.0测试接口30包括四个USB3.0信号引脚，与待测USB3.0设备接口10的四个USB3.0信号引脚相对应。
优选地，上述USB2.0测试接口20包括两个USB2.0信号引脚，与待测USB3.0设备接口10的两个USB2.0信号引脚相对应。
需要说明的是，为实现上述USB3.0测试接口30的四个USB3.0信号引脚，与上述待测USB3.0设备接口10的四个USB3.0信号引脚能对应连接，以及上述USB2.0测试接口20的两个USB2.0信号引脚，与上述待测USB3.0设备接口10的两个USB2.0信号引脚对应连接，在上述USB通道切换单元50上相应设置有四个USB3.0信号接入引脚、四个USB3.0信号输出引脚、两个USB2.0信号接入引脚和两个USB2.0信号输出引脚。待测USB3.0设备接口10的USB3.0信号引脚通过USB通道切换单元50上的USB3.0信号接入引脚及USB3.0信号输出引脚，能间接与USB3.0测试接口30的USB3.0信号引脚连接；待测USB3.0设备接口10的USB2.0信号引脚通过USB通道切换单元50上的USB2.0信号接入引脚及USB2.0信号输出引脚，能间接与USB2.0测试接口20的USB2.0信号引脚连接。
注意，上述仅为本实用新型的较佳实施例及所运用技术原理。本领域技术人员会理解，本实用新型不限于这里的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本实用新型的保护范围。 因此，虽然通过以上实施例对本实用新型进行了较为详细的说明，但是本实用新型不仅仅限于以上实施例，在不脱离本实用新型构思的情况下，还可以包括更多其他等效实施例，而本实用新型的范围由所附的权利要求范围决定。

Claims (10)

  1. 一种USB3.0设备的测试装置，其特征在于，包括待测USB3.0设备接口、USB2.0测试接口、USB3.0测试接口、用于发出通道切换指令的控制单元和用于接收并响应所述通道切换指令的USB通道切换单元；
    所述USB通道切换单元接收所述待测USB3.0设备接口输出的USB2.0信号和USB3.0信号，并根据所述控制单元发出的通道切换指令，选择将所述USB2.0信号传输给所述USB2.0测试接口，或选择将所述USB3.0信号传输给所述USB3.0测试接口。
  2. 如权利要求1所述的测试装置，其特征在于，所述控制单元还用于发出电源切换指令；还包括用于为所述待测USB3.0设备接口供电，及接收并响应所述电源切换指令的USB电源切换单元；
    所述USB电源切换单元根据所述控制单元发出的电源切换指令，选择接通所述USB2.0测试接口的接口电源，或选择接通所述USB3.0测试接口的接口电源。
  3. 如权利要求1所述的测试装置，其特征在于，所述控制单元为手动开关。
  4. 如权利要求1所述的测试装置，其特征在于，所述控制单元为控制芯片。
  5. 如权利要求1所述的测试装置，其特征在于，所述USB通道切换单元包括通道选择电路。
  6. 如权利要求2所述的测试装置，其特征在于，所述USB电源切换单元包括备用电源和测试接口选择电路。
  7. 如权利要求6所述的测试装置，其特征在于，所述备用电源的电压为5V。
  8. 如权利要求1-7任一项所述的测试装置，其特征在于，所述待测USB3.0设备接口包括四个USB3.0信号引脚和两个USB2.0信号引脚。
  9. 如权利要求8所述的测试装置，其特征在于，所述USB3.0测试接口包括四个USB3.0信号引脚，与所述待测USB3.0设备接口的四个USB3.0信号引脚相对应。
  10. 如权利要求8所述的测试装置，其特征在于，所述USB2.0测试接口包括两个USB2.0信号引脚，与所述待测USB3.0设备接口的两个USB2.0信号引脚相对应。
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